Disclaimer: I have no knowledge about this item. Looks like old trade/tourist goods made in China. I obtained about 57 of them in a storage locker auction. I have not had it professionally tested so I don’t know if any are possibly jade. Not translucent. Measurements 3/16” thick x 4 3/4” long x 3 1/4” wide. 3.3 oz / 92 grams.